Dear Rich: You wrote on Twitter that that Form CO is "over." Does that mean I shouldn't use it any more for copyright filing? No, you can keep using it for a while but its days appear numbered. Alas, as much as we loved FORM CO, 87% of today's copyright applicants file electronically and don't bother sending in paper forms like FORM CO. So according to the Federal Register (scroll down to "Registration, Recordation, and Related Service Fees") Form CO and its exciting barcode technology will soon go the way of the Polaroid Camera and Betamax machine.